Portal No. 31 Underground Mine Touroffers visitors the unique experience of touring an actual coal mine by rail car. Visitors will adorn the traditional protective gear of the coal miner as they enjoy animated exhibits along the tour. Outside Portal #31 stands a black granite monument in tribute to long time president of the United Mine Workers John L. Lewis and a memorial to U.S. Steel District #1 miners who died in mining accidents. The site also features a 1920s lamphouse, bathhouse, L&N train depot and loadout system.